Comparison of USEPA 3050B and ISO 14869-1: 2001 digestion methods for sediment analysis by using FAAS and ICP-OES quantification techniques

Navarro, Elvira Maria Galí; Tagle, Margarita Edelia Villanueva; Larrea, María Teresa; Alfonso, Mario Simeón Pomares

doi:10.1590/s0100-40422011000800025

Cited by 17 publications

(13 citation statements)

References 10 publications

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“…Location of Namal Lake and sampling sites. using a thermostatically controlled Block Digester (Temak-Digestor Model DK 20) with (1:1) HNO 3 , H 2 O 2 (30%), and HCl [21]. The heated samples were then allowed to cool and were filtered using 0.45 µm filter paper and finally diluted to 100 ml in a volumetric flask.…”

Section: Sample Preparation and Analysismentioning

confidence: 99%

Heavy Metals Contamination and Ecological Risk Assessment in Surface Sediments of Namal Lake, Pakistan

Javed¹,

Ahmad²,

Mashiatullah³

2018

Pol. J. Environ. Stud.

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Heavy metals pollution is a worldwide problem that has grown during the past few decades because of their toxicity, extensive sources, non-biodegradable characteristics, and accumulative behaviors in aquatic environments [1][2][3]. These metals are identified as a significant indicator for degradation of aquatic environments. Enormous quantities of metals are being released into the environment both from anthropogenicrelated processes and natural sources through direct discharge into water or indirectly through stormwater runoff, domestic effluents, fossil fuel combustion, and atmospheric depositions [4]. Heavy metals ultimately Pol. J. Environ. Stud. Vol. 27, No. 2 (2018), 675-688 Original Research Heavy Metals Contamination and Ecological Risk AbstractHeavy metal concentrations were determined using inductively coupled plasma-optical emission spectrometry (ICP-OES) in surface sediments of Namal Lake, Pakistan. The metals content in sediment varied significantly and were in the order of Al>Fe>Mn>V>Zn>Cr>Ni>Cu>As>Co>Pb>Cd. Except for Al, the average concentrations of metals were higher than the average value of the upper continental crust (UCC). The significant positive correlations among heavy metals (p<0.01) suggested that these metals originated from the same sources. The pollution indices indicated severe contamination of sediments with As, Cd, and Ni. The sediment quality guidelines (SQGs) revealed that 19.2% of As, 11.5% of Cr, and 88.5% of Ni from all the sampling sites exceeded the probable effect level (PEL). The computed average risk index (RI) of single elements were in the following order Cd(411.9)>As(69.0)>Ni(15.4)>Cu(10.0)>Cr(4.3)> Pb(3.66)>Zn(1.7). Principle component analysis (PCA) extracted three components explaining (76.136%) of total variance of chemical data and were highly to moderately loaded with Fe, Mn, Co, Cu, Zn, Al, As, Cd, Ni, V, Cr, TOC, pH, CaCO 3 , and Pb in three principal components (PCs). The results obtained from cluster analysis, correlation of heavy metals, and principal component analysis suggested the origin of metals from both anthropogenic and natural sources.

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Section: Sample Preparation and Analysismentioning

confidence: 99%

Heavy Metals Contamination and Ecological Risk Assessment in Surface Sediments of Namal Lake, Pakistan

Javed¹,

Ahmad²,

Mashiatullah³

2018

Pol. J. Environ. Stud.

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“…Outros estudos mostram que escorias em geral quando adicionadas ao ambiente sem monitoramento ou controle, podem contaminar o meio ambiente (GUARCIA-GUINEA et al, 2010). Porém, é necessário o aprofundamento dos estudos da liberação de metais presentes no resíduo, pois, como observado neste trabalho, os resultados obtidos podem ser mascarados por imperfeições do método de avaliação, que podem estar relacionados a capacidade extrativa do método e das ligações químicas que os metais apresentam no resíduo, reduzindo a eficiência de extração (NAVARRO et al 2011;McBRIDE et al, 2011). Também há que se analisar qual a contribuição do tempo de incubação no solo na solubilização dos metais presentes nos resíduos de diferentes tamanhos de partículas.…”

Section: Resultsunclassified

Correção da acidez do solo e aporte de metais pesados pela aplicação de escória básica de aciaria

Wally¹,

Bissani²,

Santos³

et al. 2015

Biosci. J.

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RESUMO:A fabricação de aço está expandindo sua produção, o que vem aumentando a quantidade de resíduos sólidos gerados. As escórias básicas de aciaria apresentam características de corretivo da acidez do solo e fonte de nutrientes para as plantas, porém apresentam alguns metais pesados em sua constituição. O presente trabalho teve como objetivo avaliar o efeito da aplicação de escória de siderurgia na correção da acidez do solo e no aporte de metais pesados, como manganês (Mn), cobre (Cu), zinzo (Zn), cádmio (Cd), cromo (Cr) e níquel (Ni). O estudo foi conduzido em amostras de um Argissolo Vermelho Distrófico típico, dispostas em colunas e mantidas a céu aberto, em delineamento experimental de blocos casualizados, com quatro repetições. Os tratamentos consistiram em doses diferentes de escória de siderurgia com diferentes granulometrias, incluindo tratamentos com solo sob condição natural (controle) e corrigido (carbonato de cálcio e magnésio e adubação com nitrogênio, fósforo e potássio). Aos 12, 18 e 24 meses após a aplicação dos tratamentos foram coletadas amostras de solo das colunas para avaliação da reatividade da escória. A escória básica de aciaria finamente moída teve efeito similar ao carbonato na correção do pH do solo, no aumento da CTC efetiva e da saturação de bases. Partículas com diâmetro até 15 mm também foram efetivas para aumentar os valores desses atributos. As maiores doses de escória aumentaram os teores de Mn, Cr e Ni no solo em relação ao controle. Os resultados obtidos neste estudo, demonstram que a escória de siderurgia tem potencial para a utilização na correção do pH do solo. PALAVRAS-CHAVE: INTRODUÇÃONos últimos anos, tem aumentado a demanda de produtos derivados do ferro e do aço, impulsionando o crescimento do setor siderúrgico nacional. Assim, como a maioria dos processos industriais, a siderurgia é geradora de grande quantidade de resíduos. Entre os resíduos da fabricação do aço estão às escórias de siderurgia. As opções de reutilização destes resíduos são muito restritas, o que ocasiona seu acúmulo nas indústrias.

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“…Besides, the potassium and phosphorus were measured by using USEPA 3050B. This method is internationally recognized to analyze solid sample elements, such as soil, sediment, and sludge [ 24 ]. The analytical test method was conducted by a chemist under ChemVi Laboratory Sdn Bhd, located at Shah Alam, Selangor.…”

Section: Methodsmentioning

confidence: 99%

Optimization of Bokashi-Composting Process Using Effective Microorganisms-1 in Smart Composting Bin

Lew

Ibrahim

Kamarudin

et al. 2021

Sensors

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Malaysians generate 15,000 tons of food waste per day and dispose of it in the landfill, contributing to greenhouse gas emissions. As a solution for the stated problem, this research aims to produce an excellent quality bokashi compost from household organic waste using a smart composting bin. The bokashi composting method is conducted, whereby banana peels are composted with three types of bokashi brans prepared using 12, 22, and 32 mL of EM-1 mother cultured. During the 14 days composting process, the smart composting bin collected the temperature, air humidity, and moisture content produced by the bokashi-composting process. With the ATmega328 microcontroller, these data were uploaded and synchronized to Google Sheet via WIFI. After the bokashi-composting process was completed, three of each bokashi compost and a control sample were buried in separate black soil for three weeks to determine each compost’s effectiveness. NPK values and the C/N ratio were analyzed on the soil compost. From the research, 12 mL of EM-1 shows the most effective ratio to the bokashi composting, as it resulted in a faster decomposition rate and has an optimum C/N ratio. Bokashi composting can help to reduce household food wastes. An optimum amount of the EM-1 used during the bokashi-composting process will produce good quality soil without contributing to environmental issues.

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Comparison of USEPA 3050B and ISO 14869-1: 2001 digestion methods for sediment analysis by using FAAS and ICP-OES quantification techniques

Cited by 17 publications

References 10 publications

Heavy Metals Contamination and Ecological Risk Assessment in Surface Sediments of Namal Lake, Pakistan

Heavy Metals Contamination and Ecological Risk Assessment in Surface Sediments of Namal Lake, Pakistan

Correção da acidez do solo e aporte de metais pesados pela aplicação de escória básica de aciaria

Optimization of Bokashi-Composting Process Using Effective Microorganisms-1 in Smart Composting Bin

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